A social inadequate person who tries to get his point across on the internet because they can't do it in real life. Generally rubs his bishop over linux searching for open ports on other peoples computers. They have many many online friends all over the world. More than likely a moderator of a forum or game server. Conspiracies are a must!

Someone who's play Counter-Strike and/or use any form of internet lingo.
ie. 'pwn', '1337' etc.
An internet junkie is someone who spends the same amount of time on the internet as these people, but instead use good things: urbandictionary, erowid, pillreports and talk to friends.
A variation is the 'internet slut'.